Fluorinated polycyclic compounds

C - Chemistry – Metallurgy – 07 – C

Patent

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148/59, 260/654

C07C 23/18 (2006.01) B23K 35/38 (2006.01) C07C 23/38 (2006.01) C07C 23/40 (2006.01) H05K 3/34 (2006.01)

Patent

CA 1277996

ABSTRACT A fully-fluorinated and fully saturated fluorocarbon, containing at least two condensed or non-condensed six-membered rings. seventeen carbon atoms and from 28 to 32 (inclusive) fluorine atoms in its molecule, and having a boiling point from 250° to 265°C: provided that where the rings are non-condensed they are separated by not more than 4 carbon atoms. Such multi-ring C17 saturated-perfluorocarbons are produced by the saturation fluorination of the corresponding multi-ring hydrocarbons and are suitable for use as high-temperature vapour-soldering fluids. especially for use with solders melting above 200°C.

540319

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